My girlfriend played FFX when she was younger and had no idea the Sphere Grid actually existed. She ended up getting to Luca and just quitting because the game started getting too hard.
I can see that, because after battles she probably thought the S. Level was her actual "level."
No time for "Dilly-Dallying" or "Shilly-Shallying."
Props go to the one and only, Proxy, for the signature.